Bigmouth Buffalo Ictiobus cyprinellus sets freshwater teleost record as improved age analysis reveals centenarian longevity
| Autor: | Allen H. Andrews, Alec R. Lackmann, Mark E. Clark, Malcolm G. Butler, Ewelina S. Bielak-Lackmann |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
media_common.quotation_subject Population Medicine (miscellaneous) 010603 evolutionary biology 01 natural sciences General Biochemistry Genetics and Molecular Biology Ichthyology 14. Life underwater education lcsh:QH301-705.5 media_common education.field_of_study biology 010604 marine biology & hydrobiology Longevity food and beverages social sciences biology.organism_classification 6. Clean water humanities Fishery Geography Ictiobus cyprinellus lcsh:Biology (General) Threatened species Conservation biology Centenarian General Agricultural and Biological Sciences Bay |
| Zdroj: | Communications Biology, Vol 2, Iss 1, Pp 1-14 (2019) |
| ISSN: | 2399-3642 |
| Popis: | Understanding the age structure and population dynamics of harvested species is crucial for sustainability, especially in fisheries. The Bigmouth Buffalo (Ictiobus cyprinellus) is a fish endemic to the Mississippi and Hudson Bay drainages. A valued food-fish for centuries, they are now a prized sportfish as night bowfishing has become a million-dollar industry in the past decade. All harvest is virtually unregulated and unstudied, and Bigmouth Buffalo are declining while little is known about their biology. Using thin-sectioned otoliths and bomb-radiocarbon dating, we find Bigmouth Buffalo can reach 112 years of age, more than quadrupling previous longevity estimates, making this the oldest known freshwater teleost (~12,000 species). We document numerous populations that are comprised largely (85–90%) of individuals over 80 years old, suggesting long-term recruitment failure since dam construction in the 1930s. Our findings indicate Bigmouth Buffalo require urgent attention, while other understudied fishes may be threatened by similar ecological neglect. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |